testnet-laconicd-stack/testnet-nitro-node.md
Prathamesh Musale 0d8628d7c3 Add steps to update testnet2 deployments (#38)
Part of [Create a public laconicd testnet](https://www.notion.so/Create-a-public-laconicd-testnet-896a11bdd8094eff8f1b49c0be0ca3b8)

Added steps to update deployments:
- stage2 laconicd
- laconic-console-testnet2
- laconic-shopify
- fixturenet-eth
- Nitro bridge
- Nitro nodes
- Snowball backend
- Snowball frontend

Co-authored-by: Adw8 <adwaitgharpure@gmail.com>
Reviewed-on: #38
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
2024-10-30 13:59:56 +00:00

29 KiB

testnet-nitro-node

Prerequisites

  • Local:

    • Clone the cerc-io/testnet-ops repository:

      git clone git@git.vdb.to:cerc-io/testnet-ops.git
      
    • Ansible: see installation

  • On deployment machine:

Setup

  • Move to nitro-nodes-setup :

    cd testnet-ops/nitro-nodes-setup
    
  • Fetch the required Nitro node config:

    wget -O nitro-vars.yml https://git.vdb.to/cerc-io/testnet-laconicd-stack/raw/branch/main/ops/stage2/nitro-node-config.yml
    
  • Fetch required asset addresses:

    wget -O assets.json https://git.vdb.to/cerc-io/testnet-laconicd-stack/raw/branch/main/ops/stage2/assets.json
    
  • Ask testnet operator to send L1 tokens and ETH to your chain address

  • Check balance of your tokens once they are transferred:

    # Note: Account address should be without "0x"
    export ACCOUNT_ADDRESS="<account-address>"
    
    export GETH_CHAIN_ID="1212"
    export GETH_CHAIN_URL="https://fixturenet-eth.laconic.com"
    
    export ASSET_ADDRESS_1=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken.address' assets.json)
    export ASSET_ADDRESS_2=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken2.address' assets.json)
    
    # Check balance of eth account
    curl -X POST $GETH_CHAIN_URL \
    -H "Content-Type: application/json" \
    -d '{
      "jsonrpc":"2.0",
      "method":"eth_getBalance",
      "params":["'"$ACCOUNT_ADDRESS"'", "latest"],
      "id":1
    }'
    
    # Check balance of first asset address
    curl -X POST $GETH_CHAIN_URL \
     -H "Content-Type: application/json" \
     -d '{
       "jsonrpc":"2.0",
       "method":"eth_call",
       "params":[{
         "to": "'"$ASSET_ADDRESS_1"'",
         "data": "0x70a08231000000000000000000000000'"$ACCOUNT_ADDRESS"'"
       }, "latest"],
       "id":1
     }'
    
    # Check balance of second asset address
    curl -X POST $GETH_CHAIN_URL \
     -H "Content-Type: application/json" \
     -d '{
       "jsonrpc":"2.0",
       "method":"eth_call",
       "params":[{
         "to": "'"$ASSET_ADDRESS_2"'",
         "data": "0x70a08231000000000000000000000000'"$ACCOUNT_ADDRESS"'"
       }, "latest"],
       "id":1
     }'
    
  • Edit nitro-vars.yml and add the following variables:

    # Private key for your Nitro account (same as the one used in stage0 onboarding)
    # Export the key from Laconic wallet (https://wallet.laconic.com)
    nitro_sc_pk: ""
    
    # Private key for a funded account on L1
    # This account should have L1 tokens for funding your Nitro channels
    nitro_chain_pk: ""
    
    # Multiaddr with publically accessible IP address / DNS for your L1 nitro node
    # Use port 3007
    # Example: "/ip4/192.168.x.y/tcp/3007"
    # Example: "/dns4/example.com/tcp/3007"
    nitro_l1_ext_multiaddr: ""
    
    # Multiaddr with publically accessible IP address / DNS for your L2 nitro node
    # Use port 3009
    # Example: "/ip4/192.168.x.y/tcp/3009"
    # Example: "/dns4/example.com/tcp/3009"
    nitro_l2_ext_multiaddr: ""
    
  • Edit the setup-vars.yml to update the target directory:

    # Set absolute path to desired deployments directory (under your user)
    # Example: /home/dev/nitro-node-deployments
    ...
    nitro_directory: <path-to-deployments-dir>
    ...
    
    # Will create deployments at <path-to-deployments-dir>/l1-nitro-deployment and <path-to-deployments-dir>/l2-nitro-deployment
    

Run Nitro Nodes

Nitro nodes can be set up on a target machine using Ansible:

  • In testnet-ops/nitro-nodes-setup, create a new hosts.ini file:

    cp ../hosts.example.ini hosts.ini
    
  • Edit the hosts.ini file to run the playbook on a remote machine:

    [<deployment_host>]
    <host_name> ansible_host=<target_ip> ansible_user=<ssh_user> ansible_ssh_common_args='-o ForwardAgent=yes'
    
    • Replace <deployment_host> with nitro_host
    • Replace <host_name> with the alias of your choice
    • Replace <target_ip> with the IP address or hostname of the target machine
    • Replace <ssh_user> with the username of the user that you set up on target machine (e.g. dev, ubuntu)
  • Verify that you are able to connect to the host using the following command

    ansible all -m ping -i hosts.ini
    
    # If using password based authentication, enter the ssh password on prompt; otherwise, leave it blank
    
    # Expected output:
    
    # <host_name> | SUCCESS => {
    #  "ansible_facts": {
    #      "discovered_interpreter_python": "/usr/bin/python3.10"
    #  },
    #  "changed": false,
    #  "ping": "pong"
    # }
    
  • Execute the run-nitro-nodes.yml Ansible playbook to setup and run a Nitro node (L1+L2):

    LANG=en_US.utf8 ansible-playbook -i hosts.ini run-nitro-nodes.yml --extra-vars='{ "target_host": "nitro_host"}' --user $USER
    

Check Deployment Status

  • Run the following commands on deployment machine:

    cd <path-to-deployments-dir>
    
    # Check the logs, ensure that the nodes are running
    laconic-so deployment --dir l1-nitro-deployment logs nitro-node -f
    laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f
    
    # Let L1 node sync up with the chain
    # Expected logs after sync:
    # nitro-node-1  | 2:04PM INF Initializing Http RPC transport...
    # nitro-node-1  | 2:04PM INF Completed RPC server initialization url=127.0.0.1:4005/api/v1
    
  • Get your Nitro node's info:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-node-info -p 4005 -h nitro-node"
    
    # Expected output:
    # {
    #   "SCAddress": "0xd0eA8b27591b1D070cCcD4D30b8D408fe794FDfc",
    #   "MessageServicePeerId": "16Uiu2HAmSHRjoxveaPmJipzmdq69U8zme8BMnFjSBPferj1E5XAd"
    # }
    
    # SCAddress -> nitro address, MessageServicePeerId -> libp2p peer id
    

Create Channels

Create a ledger channel with the bridge on L1 which is mirrored on L2

  • Run the following commands on deployment machine

  • Set required variables:

    cd <path-to-deployments-dir>
    
    export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)
    
    export GETH_CHAIN_ID="1212"
    
    # Get asset addresses from assets.json file
    export ASSET_ADDRESS_1=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken.address' assets.json)
    export ASSET_ADDRESS_2=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken2.address' assets.json)
    
  • Check that you have no existing channels on L1 or L2:

    laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
    
    # Expected output:
    # []
    
  • Ensure that your account has enough balance of tokens from assets.json

  • Create a ledger channel between your L1 Nitro node and Bridge with custom asset:

    laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client direct-fund $BRIDGE_NITRO_ADDRESS --asset "$ASSET_ADDRESS_1:1000,1000" --asset "$ASSET_ADDRESS_2:1000,1000" -p 4005 -h nitro-node"
    
    # Follow your L1 Nitro node logs for progress
    
    # Expected Output:
    # Objective started DirectFunding-0x161d289a50222caa781db215bb82a3ede4f557217742245525b8e8cbff04ec21
    # Channel Open 0x161d289a50222caa781db215bb82a3ede4f557217742245525b8e8cbff04ec21
    
    # Set the resulting ledger channel id in a variable
    export LEDGER_CHANNEL_ID=
    
    • Check the Troubleshooting section if command to create a ledger channel fails or gets stuck
  • Once direct-fund objective is complete, the bridge will create a mirrored channel on L2

  • Check L2 Nitro node's logs to see that a bridged-fund objective completed:

    laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f --tail 30
    
    # Expected Output:
    # nitro-node-1  | 5:01AM INF INFO Objective cranked address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179 waiting-for=WaitingForNothing
    # nitro-node-1  | 5:01AM INF INFO Objective is complete & returned to API address=0xaaa6628ec44a8a742987ef3a114ddfe2d4f7adce objective-id=bridgedfunding-0x6a9f5ccf1fa802525d794f4a899897f947615f6acc7141e61e056a8bfca29179
    
  • Check status of L1 ledger channel with the bridge using channel id:

    laconic-so deployment --dir l1-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-ledger-channel $LEDGER_CHANNEL_ID -p 4005 -h nitro-node"
    
    # Example output:
    # {
    #   ID: '0xbb28acc2e1543f4b41eb1ab9eb2e354b18554aefe4e7f0fa5f20046869d8553f',
    #   Status: 'Open',
    #   Balances: [
    #     {
    #       AssetAddress: '0xa6b4b8b84576047a53255649b4994743d9c83a71',
    #       Me: '0xdaaa6ef3bc03f9c7dabc9a02847387d2c19107f5',
    #       Them: '0xf0e6a85c6d23aca9ff1b83477d426ed26f218185',
    #       MyBalance: 1000n,
    #       TheirBalance: 1000n
    #     },
    #     {
    #       AssetAddress: '0x0000000000000000000000000000000000000000',
    #       Me: '0xdaaa6ef3bc03f9c7dabc9a02847387d2c19107f5',
    #       Them: '0xf0e6a85c6d23aca9ff1b83477d426ed26f218185',
    #       MyBalance: 1000n,
    #       TheirBalance: 1000n
    #     }
    #   ],
    #   ChannelMode: 'Open'
    # }
    
  • Check status of the mirrored channel on L2:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
    
    # Example output:
    # [
    #   {
    #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
    #     "Status": "Open",
    #     "Balances": [
    #       {
    #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": 1000,
    #         "TheirBalance": 1000
    #       },
    #       {
    #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": 1000,
    #         "TheirBalance": 1000
    #       }
    #     ],
    #     "ChannelMode": "Open"
    #   }
    # ]
    

Payments On L2 Channel

Perform payments using a virtual payment channel created with another Nitro node over the mirrored L2 channel with bridge as an intermediary

  • Prerequisite: Ledger channel is required to create a payment channel

  • Note: Currently payment channel is created from first asset present in ledger channel

  • Run the following commands on deployment machine

  • Switch to the nitro-node directory:

    cd <path-to-deployments-dir>
    
  • Check status of the mirrored channel on L2:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
    
    # Example output:
    # [
    #   {
    #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
    #     "Status": "Open",
    #     "Balances": [
    #       {
    #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": 1000,
    #         "TheirBalance": 1000
    #       },
    #       {
    #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": 1000,
    #         "TheirBalance": 1000
    #       }
    #     ],
    #     "ChannelMode": "Open"
    #   }
    # ]
    
  • Set required variables:

    export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)
    
    # Mirrored channel on L2
    export L2_CHANNEL_ID=<l2-channel-id>
    
    # Amount to create the payment channel with
    export PAYMENT_CHANNEL_AMOUNT=500
    
  • Set counterparty address

    export COUNTER_PARTY_ADDRESS=<counterparty-nitro-address>
    
    • Get the nitro address of the counterparty's node with whom you want create payment channel

    • To get the nitro address of the your node:

      laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-node-info -p 4005 -h nitro-node"
      # `SCAddress` -> nitro address
      
  • Check for existing payment channels for the L2 channel:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-payment-channels-by-ledger $L2_CHANNEL_ID -p 4005 -h nitro-node"
    
  • Create a virtual payment channel:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client virtual-fund $COUNTER_PARTY_ADDRESS $BRIDGE_NITRO_ADDRESS --amount $PAYMENT_CHANNEL_AMOUNT -p 4005 -h nitro-node"
    
    # Follow your L2 Nitro node logs for progress
    
    # Expected Output:
    # Objective started VirtualFund-0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
    # Channel Open 0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
    
    # Set the resulting payment channel id in a variable
    PAYMENT_CHANNEL_ID=<payment-channel-id>
    

    Multiple virtual payment channels can be created at once

  • Check the payment channel's status:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-payment-channel $PAYMENT_CHANNEL_ID -p 4005 -h nitro-node"
    
    # Expected output:
    # {
    #   ID: '0xb29aeb32c9495a793ebf7bd116232075d1e7bfe89fc82281c7d498e3ffd3e3bf',
    #   Status: 'Open',
    #   Balance: {
    #     AssetAddress: '0x0000000000000000000000000000000000000000',
    #     Payee: '<your-nitro-address>',
    #     Payer: '<counterparty-nitro-address>',
    #     PaidSoFar: 0n,
    #     RemainingFunds: <payment-channel-amount>n
    #   }
    # }
    
  • Send payments using the virtual payment channel:

    export PAY_AMOUNT=200
    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client pay $PAYMENT_CHANNEL_ID $PAY_AMOUNT -p 4005 -h nitro-node"
    
    # Expected output
    # {
    #   Amount: <pay-amount>,
    #   Channel: '<payment-channel-id>'
    # }
    
    # This can be done multiple times until the payment channel balance is exhausted
    
  • Check payment channel's status again to view updated channel state

  • Close the payment channel to settle on the L2 mirrored channel:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client virtual-defund $PAYMENT_CHANNEL_ID -p 4005 -h nitro-node"
    
    # Expected output:
    # Objective started VirtualDefund-0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
    # Channel complete 0x43db45a101658387263b36d613322cc952d8ce5b70de51e3a495513c256bef4d
    
  • Check L2 mirrored channel's status after the virtual payment channel is closed:

    • This can be checked by both nodes
    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
    
    # Example output:
    # [
    #   {
    #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
    #     "Status": "Open",
    #     "Balances": [
    #       {
    #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": <updated balance>,
    #         "TheirBalance": <updated balance>
    #       },
    #       {
    #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": <updated balance>,
    #         "TheirBalance": <updated balance>
    #       }
    #     ],
    #     "ChannelMode": "Open"
    #   }
    # ]
    

    Your balance on the L2 channel should be reduced by total payments done on the virtual payment channel

Swaps on L2

Perform swaps using a swap channel created with another Nitro node over the mirrored L2 channel with bridge as an intermediary

  • Prerequisite: Ledger channel is required to create a swap channel

  • Run the following commands on deployment machine

  • Switch to the nitro-node directory:

    cd <path-to-deployments-dir>
    
  • Check status of the mirrored channel on L2:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
    
    # Example output:
    # [
    #   {
    #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
    #     "Status": "Open",
    #     "Balances": [
    #       {
    #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": 1000,
    #         "TheirBalance": 1000
    #       },
    #       {
    #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": 1000,
    #         "TheirBalance": 1000
    #       }
    #     ],
    #     "ChannelMode": "Open"
    #   }
    # ]
    
  • Set required variables:

    export BRIDGE_NITRO_ADDRESS=$(yq eval '.bridge_nitro_address' nitro-node-config.yml)
    
    export GETH_CHAIN_ID="1212"
    
    # Get asset addresses from assets.json file
    export ASSET_ADDRESS_1=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken.address' assets.json)
    export ASSET_ADDRESS_2=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken2.address' assets.json)
    
  • Set counterparty address

    export COUNTER_PARTY_ADDRESS=<counterparty-nitro-address>
    
    • Get the nitro address of the counterparty's node with whom you want create swap channel

    • To get the nitro address of the your node:

      laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-node-info -p 4005 -h nitro-node"
      # `SCAddress` -> nitro address
      
  • Create swap channel:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-fund  $COUNTER_PARTY_ADDRESS $BRIDGE_NITRO_ADDRESS --asset "$ASSET_ADDRESS_1:100,100" --asset "$ASSET_ADDRESS_2:100,100" -p 4005 -h nitro-node"
    
    # Expected output
    # Objective started SwapFund-0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
    # Channel open 0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
    
  • Export swap channel ID:

    export SWAP_CHANNEL_ID=
    
  • Check swap channel:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-swap-channel $SWAP_CHANNEL_ID -p 4005 -h nitro-node"
    
    # Expected output:
    # {
    #   ID: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9',
    #   Status: 'Open',
    #   Balances: [
    #     {
    #       AssetAddress: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
    #       Me: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
    #       Them: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
    #       MyBalance: 100n,
    #       TheirBalance: 100n
    #     },
    #     {
    #       AssetAddress: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
    #       Me: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
    #       Them: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
    #       MyBalance: 100n,
    #       TheirBalance: 100n
    #     }
    #   ]
    # }
    

Performing swaps

  • Ensure that environment variables for asset addresses are set (should be done by both parties):

    export GETH_CHAIN_ID="1212"
    
    # Get asset addresses from assets.json file
    export ASSET_ADDRESS_1=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken.address' assets.json)
    export ASSET_ADDRESS_2=$(jq -r --arg chainId "$GETH_CHAIN_ID" '.[$chainId][0].contracts.TestToken2.address' assets.json)
    
  • Get all active swap channels for a specific mirrored ledger channel (should be done by both parties)

    • To get mirrored ledger channels:

      laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
      
      # Example output:
      # [
      #   {
      #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
      #     "Status": "Open",
      #     "Balances": [
      #       {
      #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
      #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
      #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
      #         "MyBalance": 1000n,
      #         "TheirBalance": 1000n
      #       },
      #       {
      #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
      #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
      #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
      #         "MyBalance": 1000n,
      #         "TheirBalance": 1000n
      #       }
      #     ],
      #     "ChannelMode": "Open"
      #   }
      # ]
      
    • Export ledger channel ID:

        export LEDGER_CHANNEL_ID=
      
    • To get swap channels for a ledger channel:

      laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-swap-channels-by-ledger $LEDGER_CHANNEL_ID -p 4005 -h nitro-node"
      # Example Output:
      # [
      #   {
      #     ID: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9',
      #     Status: 'Open',
      #     Balances: [
      #       {
      #         AssetAddress: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
      #         Me: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
      #         Them: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
      #         MyBalance: 100,
      #         TheirBalance: 100n
      #       },
      #       {
      #         AssetAddress: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
      #         Me: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
      #         Them: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
      #         MyBalance: 100,
      #         TheirBalance: 100
      #       }
      #     ]
      #   }
      # ]
      
    • Export swap channel ID:

      export SWAP_CHANNEL_ID=
      
  • One of the participants can initiate the swap and other one will either accept it or reject it

  • For initiating the swap:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-initiate $SWAP_CHANNEL_ID --AssetIn "$ASSET_ADDRESS_1:20" --AssetOut "$ASSET_ADDRESS_2:10" -p 4005 -h nitro-node"
    
    # Expected output:
    # {
    #   SwapAssetsData: {
    #     TokenIn: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
    #     TokenOut: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
    #     AmountIn: 20,
    #     AmountOut: 10
    #   },
    #   Channel: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9'
    # }
    

    OR

  • For receiving the swap

    • Get the pending swap:

      laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-pending-swap $SWAP_CHANNEL_ID -p 4005 -h nitro-node"
      
      # Expected output:
      # {
      #   Id: '0x7d582020753335cfd2f2af14127c9b51c7ed7a5d547a674d9cb04fe62de6ddf3',
      #   ChannelId: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9',
      #   Exchange: {
      #     TokenIn: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
      #     TokenOut: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
      #     AmountIn: 20,
      #     AmountOut: 10
      #   },
      #   Sigs: {
      #     '0': '0x0a018de18a091f7bfb400d9bc64fe958d298882e569c1668c5b1c853b5493221576b2d72074ef6e1899b79e60eaa9934afac5c1e07b7000746bac5b3b1da93311b'
      #   },
      #   Nonce: 2840594896360394000
      # }
      
    • Export swap ID:

      export SWAP_ID=
      
    • Either accept or reject the swap

      • To accept:

        laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-accept $SWAP_ID -p 4005 -h nitro-node"
        
        # Expected output:
        # Confirming Swap with accepted
        # Objective complete Swap-0x7d582020753335cfd2f2af14127c9b51c7ed7a5d547a674d9cb04fe62de6ddf3
        

        OR

      • To reject:

        laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-reject $SWAP_ID -p 4005 -h nitro-node"
        
        # Expected output:
        # Confirming Swap with accepted
        # Objective complete Swap-0x7d582020753335cfd2f2af14127c9b51c7ed7a5d547a674d9cb04fe62de6ddf3
        
  • Check swap channel:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-swap-channel $SWAP_CHANNEL_ID -p 4005 -h nitro-node"
    
    # Example output:
    # {
    #   ID: '0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9',
    #   Status: 'Open',
    #   Balances: [
    #     {
    #       AssetAddress: '0xa4351114dae1abeb2d552d441c9733c72682a45d',
    #       Me: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
    #       Them: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
    #       MyBalance: 120n,
    #       TheirBalance: 80n
    #     },
    #     {
    #       AssetAddress: '0x314e43f9825b10961859c2a62c2de6a765c1c1f1',
    #       Me: '0xd0ea8b27591b1d070cccd4d30b8d408fe794fdfc',
    #       Them: '0x075400039e303b3fb46c0cff0404c5fa61947c05',
    #       MyBalance: 90n,
    #       TheirBalance: 110n
    #     }
    #   ]
    # }
    
  • Close swap channel:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client swap-defund $SWAP_CHANNEL_ID -p 4005 -h nitro-node"
    
    # Expected output:
    # Objective started SwapDefund-0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
    # Objective complete SwapDefund-0x1dbd58d314f123f4b0f4147eee7fd92fa523ba7082d8a75b846f6d1189e2f0e9
    
  • Check L2 mirrored channel status:

    laconic-so deployment --dir l2-nitro-deployment exec nitro-rpc-client "nitro-rpc-client get-all-ledger-channels -p 4005 -h nitro-node"
    
    # Example output:
    # [
    #   {
    #     "ID": "0xb34210b763d4fdd534190ba11886ad1daa1e411c87be6fd20cff74cd25077c46",
    #     "Status": "Open",
    #     "Balances": [
    #       {
    #         "AssetAddress": "0xa4351114dae1abeb2d552d441c9733c72682a45d",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": <updated balance>,
    #         "TheirBalance": <updated balance>
    #       },
    #       {
    #         "AssetAddress": "0x314e43f9825b10961859c2a62c2de6a765c1c1f1",
    #         "Me": "0x075400039e303b3fb46c0cff0404c5fa61947c05",
    #         "Them": "0xf0e6a85c6d23aca9ff1b83477d426ed26f218185",
    #         "MyBalance": <updated balance>,
    #         "TheirBalance": <updated balance>
    #       }
    #     ],
    #     "ChannelMode": "Open"
    #   }
    # ]
    

Update nitro nodes

  • Switch to deployments dir:

    cd $DEPLOYMENTS_DIR/nitro-node
    
  • Rebuild containers:

    laconic-so --stack ~/cerc/nitro-stack/stack-orchestrator/stacks/nitro-node build-containers --force-rebuild
    
  • Restart the nodes

    laconic-so deployment --dir l1-nitro-deployment stop
    laconic-so deployment --dir l1-nitro-deployment start
    
    laconic-so deployment --dir l2-nitro-deployment stop
    laconic-so deployment --dir l2-nitro-deployment start
    

Clean up

  • Switch to deployments dir:

    cd <path-to-deployments-dir>
    
  • Stop all Nitro services running in the background:

    laconic-so deployment --dir l1-nitro-deployment stop
    laconic-so deployment --dir l2-nitro-deployment stop
    
  • To stop all services and also delete data:

    laconic-so deployment --dir l1-nitro-deployment stop --delete-volumes
    laconic-so deployment --dir l2-nitro-deployment stop --delete-volumes
    
    # Remove deployment directories (deployments will have to be recreated for a re-run)
    sudo rm -r l1-nitro-deployment
    sudo rm -r l2-nitro-deployment
    

Troubleshooting

  • Check the logs of nitro node to see if the objective is completed

    # To check logs of L1 nitro-node
    laconic-so deployment --dir l1-nitro-deployment logs nitro-node -f --tail 30
    
    # To check logs of L2 nitro-node
    laconic-so deployment --dir l2-nitro-deployment logs nitro-node -f --tail 30
    
    • If the objective is completed, you can safely stop (Ctrl+C) the running CLI command and continue with the further instructions
  • Stop (Ctrl+C) the direct-fund command if it is stuck

  • Restart the L1 Nitro node:

    • Stop the deployment:

      cd <path-to-deployments-dir>
      
      laconic-so deployment --dir l1-nitro-deployment stop
      
    • Reset the node's durable store:

      sudo rm -rf l1-nitro-deployment/data/nitro_node_data
      
      mkdir l1-nitro-deployment/data/nitro_node_data
      
    • Restart the deployment:

      laconic-so deployment --dir l1-nitro-deployment start
      
  • Retry the ledger channel creation command